gerlach and c



0. GERLACH AND C. B. LIHIVIE. PROCESS AND MACHINE EUR RECLAIMING HETORT WASTE.

APPLICATION FILED DE01?.` 19|?.

Patented Aug. 5, 1919.

3 SHEETS--SHEETI EEEEE 0. GERLACH AND C. B. LIHME.

PROCESS AND MACHINE FOR RECLAIMING RETORT WASE. APPucATloN man 013011.11111.

l 3 l 2, l 7 3 Patented Aug. 5, 1919.

3 SHEETS-SHEET 2.

U. GERLACH AND C. B.l LIHME.

PROCESS AND MACHINE FOR HECLAIMING RETORT WASTE.

APPLICATION FILED. DEC. l?. 19|?.

1,312,173. f Patented Aug. 5, 1919.

3 SHEETS-SHEET 3.

SIG-HORS TG THE ILLNOIS. y

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To all wlwm it may concern;

Be 4it known that we, UsoA'ii Gaumen, va subject ot the Emperor ot Germany, and CHRISTIAN lnninin, a citizen of the United States, and residents ot the city of anvlle, in the county of Vermilion land State ot llllinois, and the city oit' Chicago, in the county of Cook, insaid State, respectively,

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have invented certain new and useful limprovements in Processes and Machines tor Reclaiming Retort-Waste and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part ot 'this specification.

Retort waste contains metallic onid, unconsumed carbon, and slag, in particles oiE varying size, some ot which is ne dust.. rlhis waste, as it comes from the ret0rts,'is

at a high temperature and owing to the entreme dimciilty in handling they material, at-

tempts heretofore to reclaim this material p have not proven successful.

llt is an object therefore oil thisinvention to provide a' process for reclaiming the nnconsumed carbon contained in retort waste suchas that obtained in the smelting ot zinc ores and concentrates. l

llt is further an object of our invention to provide a machine b means of which this process'can be success ully performed.

llt is further an object oil our invention to provide a machine in which tar coated coke is made out ol the carbon in retort Waste.

llt is an important object of our invention to provide a machine in which hot retort waste is received in itshot condition and in which the material is treated and reduced in temperature and the slag separated from the carbon, and the constituent materials discharged into hoppers tor further use or treatment. y

Cther and lurther important objects of this invention will be apparentfrom the disclosuresv in the specifica-tion and drawmore fully described.

, y ,ensearonMeteomar .,-ratentea aug. s, Application led December 17', 1917.. :Serial No.

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llnl.the drawings:

lligiilre 1 is a side elevation of a machine embodying my` invention.

Fig. 2 is a transverse section taken through the cylinder.

lllig. 3 is an enlarged fragmentary .sec-y tional viewv of the receiving end of the cylinderp y t is a viewof the spray pipe.

lilig. 5 is an enlarged longitudinal section tilken through thedischarge end of the mac me.

Fig.. 6 is anv enlarged fragmentary longi-y lFig. 10 is an enlarged longitudinal section thereof lwith par-ts omitted.

llig. 11 is a-section taken on line 11-11 ot llig. 1U. lig. 12 is a section taken online 12s-12 of Fig.. 10. I

its shown on the drawings: The reference numerals 1 and 2, indicate concrete standards or abutments on which the machine is supported. '.lhe rotary cylinder, an annular gear 8, is secured to Athe cylinder, which is driven by means ci".

a pulley 9, on a shalt 10, and a gear 11, is secured on the end of shaft 10, which meshes with a gear 12, on a shaft-13, which in turn has a gear secured thereto meshing with the annular gear 8. rlhe rotary or cylinder 3, is provided on its inner side with ribs or plates 14, forming an interrupted spiral which' is adapted to feedv the material through the rotary at the desired rate. Re-

`tarding ribs 15, areprovided in said cylin der. A hopper 16, is provided into which eov 'Ill

oonr sists of a long cylinder 3, provided with bearing-rings t, running on adjustable trun-v eoI the hot material from the retort is dumped,

and from the bottom of the hopper, pipes 17 and 18, are provided, the pipe 18, extend-v r is positioned for receiving thev discharged ing into the rotary. A feed Ascrew 19, is provided in said pipe 18, which is actuated by a sprocket wheel 20, and sprocket chain 2'1, driven from any suitable source. A water spray pipe 22, extends into the mouth of fthe' rotary for a suitable 'distance and lis connected to a supply pipe 23.

The dischargeend of the rotary is provided with a screen section 24, having a plurality of fine perforations 24, around which is secured a screen 25, ofv suitable mesh. Said screen 25, is rigidly connected tothe perforated rotary section 24, by means of ribs 26, and a hopper 27, is positioned beneath the rotary to receive the material falling .through the screen-125. Beyond the screen, the end of the rotary is provided with a screen section having larger perforations 28, below which is a hopper 29, for receiving the coke therein. An annular f ange 30, issecured to the discharge end ofthe rotary to prevent end discharge, thus compellin the material to be discharged through t e perforations 28.

A discharge chute 31, leads from hopper 29, from which a pipe 32, extends, and a suitable screw such as 19, before described, is

provided in said discharge pipe 32, for feeding the material outwardly through the dis-` charge pipe. A tar tank or receptacle 33, is

provided, from which leads a pipe'34, connected with which are branch vpipes 35 land 36, of which pipe 35, extends into the rotary and has a spray nozzle or ipe such as nozzle 22, for spraying hot iquid tar therethrough, and pipe 36, extends into chute 31, and likewise has a spray nozzle for discharging hot tar onto the material. 'Suitable valves 37 and 38, are provided for control' ling the flow of hot tar through saidv pipes.

In the modified form of the device shown in Figs. 9 to 12, inclusive, the reference numerals 39 and 40, indicate standards orabutments for supporting a rotary 41, and a coke discharge end section 42. Secured upon the rotary 41, is a gear 43, which acts upon and meshes with a driving gear 44, keyed upon a driving shaft45, journaled in a bearing support 46, mounted upon the abutments 39.y

rThe rotary 41, beyond the gear 43, is provided with a 'slag section 47, having a plurality of perforations 48, therein. Rigidly secured around the perforated section 47, and supported in position by means of ribs 49, is a screen 50, below which a hopper 51,

slag.

'llliecolre discharge section 42, is rigidly secured -in position beyond the outer end of the screen 50, by means of -beams 52, which are rigidly secured upon Z-bars 53, the inner ends of which are secured to the perforated section 47, while the outer ends of said Z- bars project outwardly beyond the outer end ofthe coke discharge section 42. A bear prevent end discharge of theY tar coated ing ring 54, is secured around the abutting the abutment 40, thereby affording ameans for 'supporting the projecting end of the rotary mechanism.

Rigidly secured upon the projecting ends of the Z-bar 53, area plurality of equidistantly spaced parallel rings forming a ring screen 56, through which the coke is permitted to be'discharged after said coke has first been coated with hot tar from a spray nozzle 57, which projects through the ring screen 56, and into the coke discharge section 42. Said spray nozzle 57, is connected by means of a feed pipe 58, which is connected with a tar tank or receptacle (not shown). The outer end of the ring screen 56, has an annular fiange member 59, secured thereto to coke,`which is thus 'compelled to discharge through the ring screen 56.

The operation is as follows:

When the retort waste to be treated is delivered into-the rotary at a high temperature, it consists of particles of various sizes, and a considerable quantity of dust. Water is sprayed onto the material in the first section of the rotary. This is for the purpose of assisting in breaking up the slag, allayin the dust, and also for cooling the materia through evaporation of the Water. The quantlty of water and the rate of feed of the material through the rotary is such as to obtain the/desired temperatureand at the end of this part of the treatment, the material is still warm, and practically dry. The metal oxid on the material is removed in the passage through the rotary.

When the material thus treated reaches 105 the section 24, having the smaller perforationsf24, therein, the finer materialis delivered therethrou h into the screen. Owing to the factv that t e slag is much more readily pulverized in its progress through the rotary 11o than the coke, which tends to keep its form, the slag and gangue falls through screen 25, into the hopper 27, thus removing practically all of the slag substances, and the finest particles of coke and metal oxids which may 115 be further treated if desired. |lhe finer particles of coke in the screen, are delivered into the hopper 29, and the larger particles of coke are discharged through the perforations 28, into said hopper.

Prior to the coke being discharged through the )erforations 28, hot tar is introduced into tlie discharge end of the rotar' by means of a spray pipe. As the coke is still quite warm, this tar is readily taken up, 125 giving tar coated coke which is discharged through the apertured shell of the rotary.

For the purpose of coating the particles with tar that come from the screen 25, the second tar spray pipe 36, is introduced into 130 asians the chute 31,-Whereby all the coke is tar coated. As the end of the rotary is pro` vided with an annular flange, the tar coated coke must, of necessity, drop into thehopper 29.

In the modilied form of the device shown in Figs. 9 to 12, inclusive, the operation is substantially the same as that already described.4

It Will, of course, be understood that when cold retort waste is to be treated, the Water spray is dispensed with.

Many' di'erent forms of machines may be constructed to accomplish the'objects of our invention, and the process may be varied and numerous -4other changes made vwithout; departing from the principles of our invention. We therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

We claim as our invention:

l. The process of making tar coated coke comprising spraying sufficient Water into retort Waste to cool the material, screening the slag from material, -and coating the coke with tar.

2. rllhe process for the purpose specified comprising passing retort Waste through a rotary, mixing Water With the retort Waste to lower its temperature, and simultaneously partially disintegrate the slag therein, pulverizing the partially disintegrated slag, and separating the slag from the coke.

3. "Ihe process for the `purpose specified comprising passing retort Waste through a rotary, mixing-Water with the retort Waste to lower its temperature, pulverizing the slag, separating the slag from the coke, and investing the coke With tar.

4. The process of reclaiming retort waste comprising cooling the retort Waste and simultaneously partially disintegrating the slag therein, by eva orating water thereon, pulverizing the partially disintegrated slag, and screening the slag from vthe coke.

5.l 'Ihe process of reclaiming retort Waste comprising cooling the retort waste by evaporating water thereon, pulverizing the slag, screening the slag from the coke, and saturating the coke With tar. 1

6. In a device of the class described, a rotary, means for delivering hot retort Waste into the rotary, means for delivering Water to mix with the retort Waste, means for rotating the rotary for passing the material therethrough, means for screening the slag from the coke, and means for delivering hot tar to mix with the ooke.

7. In a device of the class' described, means for cooling retort waste, means separating the slag and gangue from the coke, and means for coating the coke with hot tar.

9. In a machine of the class described,

means for holding retort Waste, means for cooling the same, means for passing the retort Waste through' said means and pulverizing the slag, a screen forsifting the slag and gangue from the coke, and means for spraying hot tar onto' the coke.

10. In a device of the class described, a rotary, means for delivering retort waste into the rotary, a. spray pipe extending into the roltary for delivering Water thereinto, members secured to the rotary for disintegrating and advancing the material therethrough, a perforated section forming part of said rotary through which the finer material falls, a screen around said perforated section adapted to screen the slag, gangue and coke dust from the coke, a hopper into which the coarser coke is delivered Yfrom the end of the screen, and a screen section form ing part of said rotary through which the larger particles of coke pass.

111. In a device of the class described, a" rotary, means for delivering retort Waste into the rotary, a spray pipe extending into the rotary for delivering Water the-reinto, members secured to the rotary for disintegrating and advancing the material therethrough, a perforated section forming part of Said rotary through which the finer mate-v rial falls, a screen around said perforated section adapted to screen the slag from the coke, a hopper into which the coke `is delivered from the end of the screen, a screen sec ltion forming part of said rotary through which the larger particles ofcoke pass, and

means for delivering hot tar to mix with the coke.

12. The process of providing a combustible product from retort Waste which consists in cooling'the Waste and separating the slag and coke, the latter being maintained at a temperature to facilitate saturation with tar, and supplying hot tar to the coke While at this temperature.

' In testimony whereof we have hereunto subscribed our names in the presence of two subscribing witnesses.

@SCAR GE'RLACH. CHRISTIAN B. LI'HME.

Witnesses:

EARL M. HARDINE, CHARLrs W. HILLS, .l r. 

